d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Call initializecpucache() before ifuncs are resolved.

Browse Source 
The function tweaks CPU capabilities based on the VM platform and
tunables, which affected selection of the cache flush method before
ifuncs were used, and should affect the cache flush in the same way
after ifunc.

PR:	232081
Reported by:	phk
Analyzed by:	avg
Sponsored by:	The FreeBSD Foundation
Approved by:	re (gjb)
This commit is contained in:
Konstantin Belousov 2018-10-12 16:00:21 +00:00
parent 05efeb8430
commit 555225c062
1 changed files with 1 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sys/amd64/amd64/machdep.c
View File

@ -1575,11 +1575,8 @@ hammer_time(u_int64_t modulep, u_int64_t physfree)
identify_cpu1();
identify_hypervisor();
/*
* hw.cpu_stdext_disable is ignored by the call, it will be
* re-evaluted by the below call to finishidentcpu().
*/
identify_cpu2();
initializecpucache();
/*
* Check for pti, pcid, and invpcid before ifuncs are
@ -1727,7 +1724,6 @@ hammer_time(u_int64_t modulep, u_int64_t physfree)
finishidentcpu(); /* Final stage of CPU initialization */
initializecpu(); /* Initialize CPU registers */
initializecpucache();
/* doublefault stack space, runs on ist1 */
common_tss[0].tss_ist1 = (long)&dblfault_stack[sizeof(dblfault_stack)];